Continuing the story begun in Book One, The Secret Citadel, a young physics student named Matt Dawson from our world finds himself transported across the dimensions by a lab accident. He lands on a world much like our own, but it's 1967 and costumed super-heroes with incredible powers exist there. He even has a few powers of his own due to the altered physical laws in a different universe. Astroman, the greatest hero of all, has disappeared and Matt...